# Percentage calculator

### What are percent formulas?

Use percent formulas to figure out percentages and unknowns in equations. Add or subtract a percentage from a number or solve the equations. There are many formulas for percentage problems. You can think of the most basic as X/Y = P x 100.

### How do you calculate the percentage of a part?

Depending on what you want to estimate, you can write three various percentage formulas: the equation for percentage is this: percentage = 100 * part / whole, and it answers the question what percentage of 20 is 8. the formula for a part is: part = whole * percentage / 100, and it answers what is 40% of 20?.

### How do I use the percentile calculator?

How to use the Percentile Calculator: 1 Input the numbers in the set separated by a comma (e.g., 1,9,18,12), space (e.g., 1 9 18 12), or line break. 2 Enter the percentile value you wish to determine. 3 Click on the Calculate button to generate the results. More ...

### How to find x if p percent of it is y?

How to find X if P percent of it is Y. Use the percentage formula Y/P% = X Example: 25 is 20% of what number? Convert the percentage to a decimal by dividing by 100.

### How do you solve a percent?

Percent problems have three parts: the percent, the base (or whole), and the amount. Any of those parts may be the unknown value to be found. To solve percent problems, you can use the equation, Percent · Base = Amount, and solve for the unknown numbers. Or, you can set up the proportion, Percent = , where the percent is a ratio of a number to ...

### How to find what percent of X is Y. Use the percentage formula: Y/X = P% Example: What percent of 60 is 12? Do the math: 12/60 = 0.20 Important! The result will always be in decimal form, not percentage form. You need to multiply the result by 100 to get the percentage.

What is p percent of X?

### What is P percent of X? 1 Written as an equation: Y = P% * X 2 The what is Y that we want to solve for 3 Remember to first convert percentage to decimal, dividing by 100 4 Solution: Solve for Y using the percentage formula Y = P% * X

What is p percent of what is y?

### P percent of what is Y? 1 Written as an equation: P% × X = Y 2 The what is X that we want to solve for 3 Divide both sides by P% to get X on one side of the equation 4 (P% × X) ÷ P% = Y ÷ P% becomes X = Y ÷ P% 5 Solution: Solve for X using the percentage formula X = Y ÷ P%

How do you use percent formulas in math?